IOTA/IOTA-ES occultation update for (407) Arachne / UCAC4 601-024484 event on 2023 Sep 27, 09:39 UT Visible from USA, Mexico Summary ------- On 2023 Sep 27 UT, the 94.1 km diameter asteroid (407) Arachne will occult a 12.4 mag star in the constellation Auriga for observers along a path across USA, Mexico. In the case of an occultation, the combined light of the asteroid and the star will drop by 1.75 mag to 13.91 mag (the magnitude of the asteroid) for at most 7.040 seconds. This update is based on, astrometry for the asteroid kindly provided by the IAU Minor Planet Center. This work has made use of data from the European Space Agency (ESA) mission Gaia (http://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, http://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. The event at a glimpse ---------------------- * Rank: 100 * date and approx. time of event: 2023 Sep 27, 09:31 - 2023 Sep 27, 09:47 * geocentric midpoint of event [JD]: 2460214.90214912 * magnitude of target star: 12.40 * magnitude drop [mag]: 1.75 * estimated maximum duration [s]: 7.040 * Moon: 94 % sunlit, 112° distance * Sun: 96° distance * rough path description: USA, Mexico The occultation path -------------------- * approximate projected width [km]: 96 * 1 sigma uncertainty interval [path widths]: +/- 0.03 * 1 sigma uncertainty interval [seconds]: +/- 1.0 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.008, +/- 0.001) * 1 sigma uncertainty ellipse (major, minor, PA): (0.008", 0.001", 97°) * approx speed of asteroid's shadow [km/s]: 13.3671 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 601-024484 by 407 Arachne on 2023 Sep 27 Centre Star Star Sun Path Limits Error Limits Alt E. Longitude Latitude U.T. Alt Az Alt Limit 1 Limit 2 Limit 3 Limit 4 Crn o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " Latitude Latitude Latitude Latitude -154 0 0 4 55 30 9 31 16.8 0 60 -80 4 25 21 5 25 43 4 23 26 5 27 38 .... -153 0 0 5 30 45 9 31 16.9 1 60 -81 5 0 33 6 1 1 4 58 38 6 2 55 -0.24 -152 0 0 6 6 9 9 31 17.3 3 60 -82 5 35 55 6 36 28 5 34 0 6 38 23 -0.23 -151 0 0 6 41 43 9 31 17.8 4 60 -82 6 11 26 7 12 4 6 9 31 7 13 59 -0.22 -150 0 0 7 17 24 9 31 18.6 5 60 -82 6 47 5 7 47 47 6 45 10 7 49 43 -0.22 -149 0 0 7 53 12 9 31 19.5 6 60 -83 7 22 51 8 23 37 7 20 56 8 25 33 -0.21 -148 0 0 8 29 6 9 31 20.7 7 60 -83 7 58 43 8 59 33 7 56 48 9 1 28 -0.21 -147 0 0 9 5 4 9 31 22.0 8 61 -82 8 34 39 9 35 32 8 32 44 9 37 28 -0.21 -146 0 0 9 41 5 9 31 23.6 10 61 -82 9 10 39 10 11 35 9 8 44 10 13 31 -0.21 -145 0 0 10 17 8 9 31 25.3 11 61 -81 9 46 41 10 47 39 9 44 46 10 49 35 -0.21 -144 0 0 10 53 12 9 31 27.3 12 61 -81 10 22 44 11 23 44 10 20 49 11 25 40 -0.21 -143 0 0 11 29 16 9 31 29.4 13 61 -80 10 58 47 11 59 49 10 56 52 12 1 45 -0.21 -142 0 0 12 5 19 9 31 31.7 14 62 -79 11 34 49 12 35 52 11 32 54 12 37 48 -0.21 -141 0 0 12 41 19 9 31 34.2 15 62 -78 12 10 49 13 11 52 12 8 53 13 13 48 -0.21 -140 0 0 13 17 15 9 31 36.9 17 62 -77 12 46 45 13 47 48 12 44 49 13 49 44 -0.21 -139 0 0 13 53 6 9 31 39.7 18 62 -76 13 22 36 14 23 39 13 20 40 14 25 35 -0.21 -138 0 0 14 28 50 9 31 42.8 19 63 -75 13 58 21 14 59 24 13 56 25 15 1 20 -0.21 -137 0 0 15 4 28 9 31 46.0 20 63 -74 14 33 59 15 35 1 14 32 4 15 36 57 -0.21 -136 0 0 15 39 57 9 31 49.4 21 63 -73 15 9 29 16 10 29 15 7 34 16 12 25 -0.21 -135 0 0 16 15 17 9 31 53.0 22 64 -72 15 44 50 16 45 47 15 42 54 16 47 43 -0.21 -134 0 0 16 50 25 9 31 56.7 23 64 -71 16 20 0 17 20 55 16 18 4 17 22 51 -0.21 -133 0 0 17 25 23 9 32 0.6 24 64 -70 16 54 58 17 55 50 16 53 3 17 57 46 -0.21 -132 0 0 18 0 7 9 32 4.7 26 65 -69 17 29 44 18 30 33 17 27 49 18 32 28 -0.21 -131 0 0 18 34 37 9 32 8.9 27 65 -68 18 4 16 19 5 1 18 2 21 19 6 57 -0.21 -130 0 0 19 8 52 9 32 13.2 28 65 -67 18 38 34 19 39 15 18 36 39 19 41 10 -0.21 -129 0 0 19 42 52 9 32 17.7 29 66 -66 19 12 36 20 13 12 19 10 41 20 15 7 -0.20 -128 0 0 20 16 34 9 32 22.3 30 66 -65 19 46 21 20 46 52 19 44 26 20 48 47 -0.20 -127 0 0 20 49 59 9 32 27.1 31 67 -64 20 19 48 21 20 14 20 17 54 21 22 9 -0.20 -126 0 0 21 23 5 9 32 32.0 32 67 -63 20 52 57 21 53 17 20 51 3 21 55 12 -0.20 -125 0 0 21 55 52 9 32 37.0 33 67 -62 21 25 47 22 26 0 21 23 53 22 27 55 -0.20 -124 0 0 22 28 18 9 32 42.2 34 68 -61 21 58 17 22 58 23 21 56 23 23 0 17 -0.20 -123 0 0 23 0 23 9 32 47.5 35 68 -60 22 30 25 23 30 25 22 28 31 23 32 19 -0.20 -122 0 0 23 32 6 9 32 52.8 37 69 -58 23 2 12 24 2 4 23 0 18 24 3 58 -0.20 -121 0 1 24 3 27 9 32 58.3 38 69 -57 23 33 36 24 33 21 23 31 43 24 35 14 -0.20 -120 0 1 24 34 24 9 33 3.9 39 70 -56 24 4 37 25 4 14 24 2 44 25 6 7 -0.20 -119 0 1 25 4 57 9 33 9.6 40 71 -55 24 35 14 25 34 43 24 33 21 25 36 36 -0.20 -118 0 1 25 35 5 9 33 15.3 41 71 -54 25 5 27 26 4 47 25 3 34 26 6 40 -0.20 -117 0 1 26 4 48 9 33 21.2 42 72 -53 25 35 14 26 34 26 25 33 22 26 36 18 -0.20 -116 0 1 26 34 6 9 33 27.1 43 72 -52 26 4 36 27 3 39 26 2 44 27 5 31 -0.20 -115 0 1 27 2 57 9 33 33.1 44 73 -51 26 33 32 27 32 26 26 31 41 27 34 18 -0.20 -114 0 1 27 31 22 9 33 39.2 45 74 -50 27 2 1 28 0 46 27 0 10 28 2 38 -0.20 -113 0 1 27 59 20 9 33 45.4 46 74 -49 27 30 4 28 28 39 27 28 13 28 30 30 -0.20 -112 0 1 28 26 50 9 33 51.6 47 75 -48 27 57 39 28 56 4 27 55 48 28 57 55 -0.20 -111 0 1 28 53 52 9 33 57.9 48 76 -47 28 24 46 29 23 2 28 22 56 29 24 52 -0.20 -110 0 1 29 20 27 9 34 4.2 49 76 -46 28 51 25 29 49 31 28 49 35 29 51 21 -0.20 -109 0 1 29 46 32 9 34 10.6 50 77 -45 29 17 36 30 15 32 29 15 46 30 17 22 -0.20 -108 0 1 30 12 9 9 34 17.0 51 78 -44 29 43 18 30 41 4 29 41 29 30 42 53 -0.20 -107 0 1 30 37 18 9 34 23.5 52 79 -43 30 8 31 31 6 7 30 6 42 31 7 56 -0.20 -106 0 1 31 1 57 9 34 30.0 53 80 -42 30 33 16 31 30 41 30 31 27 31 32 30 -0.20 -105 0 1 31 26 6 9 34 36.6 53 80 -41 30 57 30 31 54 45 30 55 42 31 56 34 -0.20 -104 0 1 31 49 47 9 34 43.1 54 81 -40 31 21 16 32 18 21 31 19 28 32 20 9 -0.20 -103 0 1 32 12 58 9 34 49.8 55 82 -39 31 44 32 32 41 26 31 42 44 32 43 14 -0.20 -102 0 1 32 35 39 9 34 56.4 56 83 -38 32 7 18 33 4 2 32 5 31 33 5 50 -0.20 -101 0 1 32 57 50 9 35 3.1 57 84 -38 32 29 35 33 26 8 32 27 48 33 27 56 -0.20 -100 0 1 33 19 32 9 35 9.8 58 85 -37 32 51 21 33 47 45 32 49 35 33 49 32 -0.19 - 99 0 1 33 40 43 9 35 16.5 59 86 -36 33 12 38 34 8 51 33 10 52 34 10 38 -0.19 - 98 0 1 34 1 25 9 35 23.2 60 87 -35 33 33 25 34 29 28 33 31 39 34 31 15 -0.19 - 97 0 1 34 21 37 9 35 29.9 61 88 -34 33 53 42 34 49 35 33 51 57 34 51 21 -0.19 - 96 0 1 34 41 20 9 35 36.7 61 89 -33 34 13 30 35 9 13 34 11 44 35 10 58 -0.19 - 95 0 1 35 0 32 9 35 43.5 62 91 -32 34 32 47 35 28 20 34 31 2 35 30 6 -0.19 - 94 0 1 35 19 15 9 35 50.2 63 92 -31 34 51 35 35 46 58 34 49 50 35 48 43 -0.19 - 93 0 1 35 37 28 9 35 57.0 64 93 -30 35 9 53 36 5 7 35 8 8 36 6 51 -0.19 - 92 0 1 35 55 12 9 36 3.8 65 94 -29 35 27 41 36 22 45 35 25 57 36 24 30 -0.19 - 91 0 1 36 12 26 9 36 10.5 66 96 -28 35 45 0 36 39 55 35 43 16 36 41 39 -0.19 - 90 0 1 36 29 11 9 36 17.3 66 97 -28 36 1 49 36 56 35 36 0 6 36 58 19 -0.19 - 89 0 1 36 45 26 9 36 24.1 67 99 -27 36 18 9 37 12 46 36 16 26 37 14 29 -0.19 - 88 0 1 37 1 12 9 36 30.9 68 100 -26 36 34 0 37 28 27 36 32 17 37 30 11 -0.19 - 87 0 1 37 16 30 9 36 37.6 69 102 -25 36 49 21 37 43 40 36 47 39 37 45 23 -0.19 - 86 0 1 37 31 18 9 36 44.4 69 104 -24 37 4 14 37 58 24 37 2 31 38 0 7 -0.19 - 85 0 1 37 45 37 9 36 51.2 70 106 -23 37 18 37 38 12 39 37 16 55 38 14 22 -0.19 - 84 0 1 37 59 28 9 36 57.9 71 108 -22 37 32 32 38 26 26 37 30 50 38 28 8 -0.19 - 83 0 1 38 12 50 9 37 4.7 71 110 -22 37 45 58 38 39 44 37 44 16 38 41 26 -0.19 - 82 0 1 38 25 43 9 37 11.4 72 112 -21 37 58 56 38 52 34 37 57 14 38 54 15 -0.19 - 81 0 1 38 38 9 9 37 18.1 73 114 -20 38 11 25 39 4 55 38 9 43 39 6 37 -0.19 - 80 0 0 38 50 6 9 37 24.9 73 116 -19 38 23 25 39 16 49 38 21 44 39 18 30 -0.19 - 79 0 0 39 1 35 9 37 31.6 74 119 -18 38 34 58 39 28 14 38 33 17 39 29 55 -0.19 - 78 0 0 39 12 36 9 37 38.3 75 122 -17 38 46 3 39 39 12 38 44 22 39 40 53 -0.19 - 77 0 0 39 23 10 9 37 44.9 75 124 -17 38 56 40 39 49 42 38 54 59 39 51 23 -0.19 - 76 0 0 39 33 16 9 37 51.6 76 127 -16 39 6 49 39 59 45 39 5 8 40 1 26 -0.19 - 75 0 0 39 42 54 9 37 58.3 76 131 -15 39 16 30 40 9 20 39 14 50 40 11 1 -0.19 - 74 0 0 39 52 5 9 38 4.9 77 134 -14 39 25 44 40 18 29 39 24 4 40 20 9 -0.19 - 73 0 0 40 0 49 9 38 11.5 77 138 -13 39 34 31 40 27 10 39 32 51 40 28 50 -0.19 - 72 0 0 40 9 6 9 38 18.2 78 141 -13 39 42 50 40 35 24 39 41 10 40 37 3 -0.19 - 71 0 0 40 16 55 9 38 24.8 78 145 -12 39 50 42 40 43 11 39 49 3 40 44 50 -0.19 - 70 0 0 40 24 18 9 38 31.4 78 150 -11 39 58 7 40 50 31 39 56 28 40 52 11 -0.20 - 69 0 0 40 31 14 9 38 37.9 78 154 -10 40 5 6 40 57 25 40 3 27 40 59 4 -0.20 - 68 0 0 40 37 44 9 38 44.5 79 159 -9 40 11 37 41 3 52 40 9 58 41 5 31 -0.20 - 67 0 0 40 43 46 9 38 51.0 79 163 -9 40 17 42 41 9 53 40 16 3 41 11 32 -0.20 - 66 0 0 40 49 23 9 38 57.6 79 168 -8 40 23 20 41 15 28 40 21 41 41 17 7 -0.20 - 65 0 0 40 54 33 9 39 4.1 79 173 -7 40 28 32 41 20 36 40 26 53 41 22 15 -0.20 - 64 0 0 40 59 17 9 39 10.6 79 178 -6 40 33 17 41 25 18 40 31 39 41 26 57 -0.20 - 63 0 0 41 3 34 9 39 17.1 79 183 -6 40 37 36 41 29 34 40 35 58 41 31 13 -0.20 - 62 0 0 41 7 25 9 39 23.6 79 187 -5 40 41 29 41 33 24 40 39 50 41 35 3 -0.20 - 61 0 0 41 10 51 9 39 30.0 79 192 -4 40 44 55 41 36 48 40 43 17 41 38 27 -0.20 - 60 0 0 41 13 50 9 39 36.5 78 196 -3 40 47 55 41 39 47 40 46 17 41 41 25 -0.20 - 59 0 0 41 16 23 9 39 42.9 78 200 -2 40 50 29 41 42 19 40 48 51 41 43 58 -0.19 - 58 0 0 41 18 31 9 39 49.3 78 205 -2 40 52 37 41 44 26 40 50 59 41 46 4 -0.19 - 57 0 0 41 20 12 9 39 55.7 77 208 -1 40 54 19 41 46 7 40 52 41 41 47 45 -0.19 - 56 0 0 41 21 28 9 40 2.1 77 212 0 40 55 35 41 47 22 40 53 57 41 49 0 -0.19 - 55 0 0 41 22 17 9 40 8.5 77 215 1 40 56 25 41 48 11 40 54 47 41 49 50 -0.19 - 54 0 0 41 22 41 9 40 14.8 76 219 1 40 56 50 41 48 35 40 55 12 41 50 14 -0.19 - 53 0 0 41 22 40 9 40 21.2 76 222 2 40 56 48 41 48 34 40 55 10 41 50 12 -0.19 - 52 0 0 41 22 12 9 40 27.5 75 225 3 40 56 20 41 48 6 40 54 42 41 49 44 -0.19 - 51 0 0 41 21 19 9 40 33.8 75 227 4 40 55 26 41 47 13 40 53 48 41 48 51 -0.19 - 50 0 0 41 19 59 9 40 40.1 74 230 4 40 54 7 41 45 54 40 52 29 41 47 32 -0.19 - 49 0 0 41 18 14 9 40 46.4 73 232 5 40 52 21 41 44 10 40 50 43 41 45 48 -0.19 - 48 0 0 41 16 3 9 40 52.7 73 235 6 40 50 9 41 42 0 40 48 31 41 43 38 -0.19 - 47 0 0 41 13 27 9 40 59.0 72 237 7 40 47 32 41 39 24 40 45 53 41 41 2 -0.19 - 46 0 0 41 10 24 9 41 5.2 72 239 8 40 44 28 41 36 22 40 42 50 41 38 1 -0.19 - 45 0 0 41 6 55 9 41 11.5 71 241 8 40 40 58 41 32 55 40 39 20 41 34 33 -0.19 - 44 0 0 41 3 1 9 41 17.7 70 243 9 40 37 2 41 29 1 40 35 24 41 30 40 -0.19 - 43 0 0 40 58 40 9 41 23.9 70 245 10 40 32 40 41 24 42 40 31 2 41 26 21 -0.19 - 42 0 0 40 53 53 9 41 30.1 69 246 11 40 27 52 41 19 57 40 26 13 41 21 36 -0.19 - 41 0 0 40 48 40 9 41 36.3 68 248 11 40 22 37 41 14 45 40 20 58 41 16 24 -0.19 - 40 0 0 40 43 1 9 41 42.4 68 250 12 40 16 56 41 9 8 40 15 17 41 10 47 -0.19 - 39 0 0 40 36 55 9 41 48.6 67 251 13 40 10 48 41 3 4 40 9 9 41 4 43 -0.19 - 38 0 0 40 30 23 9 41 54.7 66 253 14 40 4 14 40 56 34 40 2 35 40 58 14 -0.19 - 37 0 0 40 23 24 9 42 0.8 66 254 15 39 57 13 40 49 38 39 55 34 40 51 17 -0.19 - 36 0 0 40 15 59 9 42 6.9 65 255 15 39 49 45 40 42 15 39 48 6 40 43 55 -0.19 - 35 0 0 40 8 7 9 42 13.0 64 257 16 39 41 51 40 34 26 39 40 11 40 36 5 -0.19 - 34 0 0 39 59 48 9 42 19.1 63 258 17 39 33 29 40 26 9 39 31 49 40 27 49 -0.19 - 33 0 0 39 51 2 9 42 25.2 63 259 18 39 24 41 40 17 27 39 23 1 40 19 7 -0.19 - 32 0 0 39 41 50 9 42 31.2 62 261 19 39 15 25 40 8 17 39 13 45 40 9 57 -0.19 - 31 0 0 39 32 10 9 42 37.2 61 262 19 39 5 42 39 58 40 39 4 2 40 0 20 -0.19 - 30 0 0 39 22 2 9 42 43.2 60 263 20 38 55 32 39 48 36 38 53 51 39 50 16 -0.19 - 29 0 0 39 11 28 9 42 49.2 60 264 21 38 44 54 39 38 4 38 43 13 39 39 45 -0.19 - 28 0 0 39 0 26 9 42 55.2 59 265 22 38 33 48 39 27 6 38 32 7 39 28 47 -0.19 - 27 0 0 38 48 56 9 43 1.1 58 266 23 38 22 15 39 15 39 38 20 34 39 17 21 -0.19 - 26 0 0 38 36 58 9 43 7.0 57 267 23 38 10 14 39 3 45 38 8 32 39 5 27 -0.19 - 25 0 0 38 24 33 9 43 12.9 56 268 24 37 57 45 38 51 24 37 56 3 38 53 6 -0.19 - 24 0 0 38 11 40 9 43 18.8 56 269 25 37 44 47 38 38 34 37 43 6 38 40 16 -0.19 - 23 0 0 37 58 18 9 43 24.6 55 270 26 37 31 22 38 25 17 37 29 40 38 26 59 -0.19 - 22 0 0 37 44 28 9 43 30.4 54 271 27 37 17 28 38 11 31 37 15 46 38 13 13 -0.20 - 21 0 0 37 30 10 9 43 36.2 53 272 28 37 3 6 37 57 17 37 1 23 37 59 0 -0.20 - 20 0 0 37 15 23 9 43 42.0 52 273 28 36 48 15 37 42 34 36 46 32 37 44 17 -0.20 - 19 0 0 37 0 8 9 43 47.7 52 274 29 36 32 55 37 27 23 36 31 12 37 29 7 -0.20 - 18 0 0 36 44 24 9 43 53.4 51 275 30 36 17 7 37 11 44 36 15 23 37 13 27 -0.20 - 17 0 0 36 28 11 9 43 59.1 50 275 31 36 0 50 36 55 35 35 59 6 36 57 19 -0.20 - 16 0 0 36 11 30 9 44 4.7 49 276 32 35 44 3 36 38 58 35 42 19 36 40 43 -0.20 - 15 0 0 35 54 19 9 44 10.3 48 277 33 35 26 48 36 21 52 35 25 4 36 23 37 -0.20 - 14 0 0 35 36 39 9 44 15.8 47 278 33 35 9 4 36 4 17 35 7 19 36 6 2 -0.20 - 13 0 0 35 18 30 9 44 21.3 46 279 34 34 50 50 35 46 13 34 49 5 35 47 59 -0.20 - 12 0 0 34 59 53 9 44 26.8 46 279 35 34 32 8 35 27 40 34 30 22 35 29 26 -0.20 - 11 0 0 34 40 45 9 44 32.2 45 280 36 34 12 56 35 8 38 34 11 10 35 10 24 -0.20 - 10 0 0 34 21 9 9 44 37.6 44 281 37 33 53 14 34 49 6 33 51 28 34 50 52 -0.20 - 9 0 0 34 1 3 9 44 42.9 43 282 38 33 33 4 34 29 6 33 31 18 34 30 52 -0.20 - 8 0 0 33 40 28 9 44 48.1 42 282 39 33 12 24 34 8 36 33 10 37 34 10 22 -0.20 - 7 0 0 33 19 24 9 44 53.3 41 283 40 32 51 14 33 47 36 32 49 28 33 49 23 -0.20 - 6 0 0 32 57 50 9 44 58.5 40 284 41 32 29 36 33 26 8 32 27 49 33 27 55 -0.20 - 5 0 0 32 35 48 9 45 3.5 39 284 41 32 7 28 33 4 10 32 5 41 33 5 58 -0.20 - 4 0 0 32 13 16 9 45 8.5 38 285 42 31 44 51 32 41 43 31 43 4 32 43 31 -0.20 - 3 0 0 31 50 15 9 45 13.5 37 286 43 31 21 46 32 18 48 31 19 58 32 20 36 -0.20 - 2 0 0 31 26 46 9 45 18.4 37 286 44 30 58 11 31 55 23 30 56 23 31 57 12 -0.20 - 1 0 0 31 2 47 9 45 23.2 36 287 45 30 34 8 31 31 30 30 32 19 31 33 19 -0.20 - 0 0 0 30 38 20 9 45 27.9 35 288 46 30 9 36 31 7 8 30 7 47 31 8 57 -0.20 1 0 0 30 13 24 9 45 32.5 34 288 47 29 44 35 30 42 17 29 42 46 30 44 6 -0.21 2 0 0 29 48 1 9 45 37.1 33 289 48 29 19 6 30 16 58 29 17 17 30 18 48 -0.21 3 0 0 29 22 9 9 45 41.5 32 289 49 28 53 10 29 51 11 28 51 20 29 53 1 -0.21 4 0 0 28 55 49 9 45 45.9 31 290 50 28 26 45 29 24 56 28 24 55 29 26 47 -0.21 5 0 0 28 29 2 9 45 50.2 30 290 51 27 59 54 28 58 14 27 58 3 29 0 5 -0.21 6 0 0 28 1 48 9 45 54.3 29 291 52 27 32 35 28 31 5 27 30 44 28 32 56 -0.21 7 0 0 27 34 8 9 45 58.4 28 291 53 27 4 50 28 3 29 27 2 59 28 5 20 -0.21 8 0 0 27 6 0 9 46 2.3 27 292 54 26 36 38 27 35 26 26 34 47 27 37 18 -0.21 9 0 0 26 37 27 9 46 6.2 26 292 55 26 8 1 27 6 57 26 6 9 27 8 49 -0.21 10 0 0 26 8 29 9 46 9.9 25 293 56 25 38 58 26 38 3 25 37 6 26 39 55 -0.21 11 0 0 25 39 5 9 46 13.5 24 293 57 25 9 30 26 8 43 25 7 38 26 10 36 -0.21 12 0 0 25 9 17 9 46 17.0 23 294 57 24 39 38 25 38 59 24 37 46 25 40 52 -0.21 13 0 0 24 39 5 9 46 20.3 22 294 58 24 9 22 25 8 51 24 7 30 25 10 44 -0.21 14 0 0 24 8 30 9 46 23.6 21 295 59 23 38 43 24 38 20 23 36 50 24 40 13 -0.22 15 0 0 23 37 32 9 46 26.6 19 295 60 23 7 41 24 7 25 23 5 48 24 9 19 -0.22 16 0 0 23 6 12 9 46 29.6 18 296 61 22 36 18 23 36 9 22 34 25 23 38 3 -0.22 17 0 0 22 34 30 9 46 32.4 17 296 62 22 4 33 23 4 31 22 2 40 23 6 25 -0.22 18 0 0 22 2 28 9 46 35.0 16 296 63 21 32 28 22 32 32 21 30 34 22 34 26 -0.22 19 0 0 21 30 6 9 46 37.5 15 297 64 21 0 3 22 0 13 20 58 9 22 2 7 -0.22 20 0 0 20 57 26 9 46 39.8 14 297 65 20 27 20 21 27 35 20 25 26 21 29 30 -0.22 21 0 0 20 24 27 9 46 42.0 13 298 66 19 54 18 20 54 39 19 52 24 20 56 33 -0.23 22 0 0 19 51 10 9 46 44.0 12 298 67 19 20 59 20 21 25 19 19 5 20 23 20 -0.23 23 0 0 19 17 37 9 46 45.9 11 298 68 18 47 24 19 47 54 18 45 30 19 49 49 -0.23 24 0 0 18 43 49 9 46 47.5 10 299 69 18 13 33 19 14 8 18 11 39 19 16 3 -0.23 25 0 0 18 9 46 9 46 49.0 9 299 69 17 39 29 18 40 6 17 37 34 18 42 2 -0.24 26 0 0 17 35 29 9 46 50.4 7 299 70 17 5 10 18 5 51 17 3 16 18 7 47 -0.24 27 0 0 17 1 0 9 46 51.5 6 300 71 16 30 40 17 31 24 16 28 45 17 33 19 -0.25 28 0 0 16 26 19 9 46 52.5 5 300 72 15 55 57 16 56 44 15 54 2 16 58 39 -0.26 29 0 0 15 51 27 9 46 53.3 4 300 72 15 21 5 16 21 53 15 19 10 16 23 49 -0.28 30 0 0 15 16 26 9 46 53.9 3 300 73 14 46 3 15 46 53 14 44 8 15 48 49 -0.30 31 0 0 14 41 17 9 46 54.3 2 301 74 14 10 53 15 11 44 14 8 58 15 13 40 -0.36 32 0 0 14 6 0 9 46 54.5 1 301 74 13 35 36 14 36 28 13 33 41 14 38 23 -0.61 Uncertainty in time = +/- 1 secs Prediction of 2023 Aug 27.0 Data for the target star ------------------------ * name: UCAC4 601-024484 * constellation : Auriga * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 05 47 17.0361 DE: +30 07 24.310 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 05 47 17.0362 DE: +30 07 24.310 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 12.4 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (407) Arachne asteroid class: approx. diameter [km]: 94 approx. diameter ["]: 0.060 distance from Earth [AU]: 2.17260 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#65 date of fit: 2023 Aug 23 source of used astrometry: MPC, JPL number of used observations: 0 number of rejected observations: 0 time covered by the observations: 1800 Jan 01 - 1800 Jan 01 1 sigma uncertainty ellipse (major, minor, PA): 0.008", 0.001", 96.72° remarks: * orbital elements for (407)Arachne : Mean anomaly = 41.6317340693 deg Arg. of pericenter = 81.4393718952 deg Long. of node = 294.4652357967 deg Inclination = 7.5184057747 deg Eccentricity = 0.0709366879 Semimajor axis = 2.6254424644 AU Perihelion dist = 2.4392022717 AU Mag: H = 9.23, G = 0.15 Epoch of elements : MJD 60214.40215278 TDT (2023 Sep 27.4022) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#652023Aug23,7.04,2023,9,27,9.651579,-0.016587,0.183890,7.514020,0.680654,-0.005532,-0.000182,0.000000,0.000000 -63.4985,30.1321,33.01,-1.60,False UCAC4 601-024484,5.78806556,30.1234193,0.00,12.40,0.00,0.0,0,,5.81333971,30.1320800,1.75,0.00,0,0,0 407,Arachne,13.91,94.100,2.1726,0,0,2.344,2.76,,6.2,0 0,41.5386,2023,9,27,81.4394,294.4652,7.5184,0.07094,2.62544,2.43920,9.13,5.0,0.15 1.032,0.0083,0.0008,97,0.0084,Known errors,-1.00,0,-1,-1 20230927_024484,60182.99 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Aug 26, 23:51 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org